That is waaaay too broad of a definition. That could be anything from fake flames to loud exhaust (even with small tips) that insinuate a strong engine. That could also encompass muscle cars that have fake hood pins. Anyways, that's just my opinion.

The flames and exhaust would not be rice if you have 500hp. It would be rice if you have 120hp. Again, RICE doesn't have to be cheap and tacky (although it often is)

Nothing cheap and tacky about an M badge in and of itself. Put it on a 128i and it becomes a rice mod.